OPERATION
When de-energized, the HSP10-47D blocks the inlet port while allowing flow from ports
2 and 4 to port 1. When coil #1 is energized, flow is allowed from 3 to 4, and from 2 to 1.
When coil #2 is energized, flow is allowed from 3 to 2, and from 4 to 1. In circuits where
work port flows are unequal due to cylinder ratios, the higher return flow should be directed to port 2.Manual Override Option: The manual override feature is intended for emergency use, not
continuous operation. For normal valve operation (neutral) the manual override pin must be
seated in the center detent groove (ID groove on knob is in-line with top of coil nut). To shift the
valve manually from neutral to activate the S1 coil, push the knob down slightly, rotate 90 degrees
counterclockwise, then pull. To detent in this position, rotate the knob an additional 90 degrees
counterclockwise to lock in the upper detent groove. To shift manually to activate the S2 coil, push
the knob down all the way. To detent in this position, rotate the knob 90 degrees clockwise to lock
in the lower detent groove.

RECOMMENDED ELECTRONIC CONTROLLERS
The EVDR Series controllers are recommended for use with most HydraForce proportional valves.
These newer electronic controllers are versatile, reliable, and easily configured and customized
for a wide range of applications. See the EVDR Product Selection Guide.